1 kWh equals 1,000 Wh. To convert kWh to Wh, multiply the value by 1,000; divide by 1,000 to convert back. Enter any number above and the result appears instantly — free and entirely in your browser.
How do you convert kWh to Wh?
The conversion formula is Wh = kWh × 1,000. The conversion factor is fixed by definition, so the result is always exact.
kWh to Wh conversion table
| kWh | Wh |
|---|---|
| 1 kWh | 1,000 Wh |
| 2 kWh | 2,000 Wh |
| 5 kWh | 5,000 Wh |
| 10 kWh | 10,000 Wh |
| 100 kWh | 100,000 Wh |
| 1,000 kWh | 1,000,000 Wh |
What is kWh (kWh)?
The kilowatt-hour (kWh) is 1,000 watt-hours (3.6 MJ) and the unit on your electricity bill. A typical home uses several kWh per day.
What is Wh (Wh)?
The watt-hour (Wh) is the energy of one watt sustained for one hour, equal to 3,600 joules. It rates small batteries and power banks.
Why convert kWh to Wh?
Energy units come from different fields: joules and kilojoules in physics, kilocalories on food labels, kilowatt-hours on electricity bills, BTU in heating and air-conditioning. Converting between them is common for nutrition, utility bills and HVAC.
One kilocalorie (the food Calorie) equals exactly 4.184 kJ — which is why nutrition labels show both. One kilowatt-hour is 3.6 MJ, equal to about 3,412 BTU or 860 kcal (BIPM/ISO).
How to convert kWh to Wh
- Enter the value in kWh into the left field of the converter.
- Read the result in Wh instantly in the right field — it updates automatically.
- Use the swap button to reverse the direction (Wh to kWh).
The converter runs entirely in your browser: no uploads, no queue, no limits. You can even use it offline.